User's Manual

December 6, 2006 Proprietary Information 23

Revision 1.0

4.5.3 SET Sub-Command

The SET sub-command changes the power level of the reader

and contains the following message format:

Figure 11 SET Sub-Command Message Format

Table 10 SET Sub-Command Message Format

MSB LSB

Message

Command Parameters

Sub-

Command

Parameters

0x02 0x00

Level

Mod

Depth

1 byte 1 byte 1 byte 1 byte 124 bytes

Field Definition

RF power level to be used for reading Class 0 tags

NO_CHG (0x00) - The current setting is to remain unchanged

RF_LEVEL

Setting (0x01, 0x10) - +15 dBm to +30 dBm in 16 steps of 1

Modulation depth to be used for reading Class 0 tags

NO_CHG (0x00) - The current setting is to remain unchanged

MOD_DEPTH

Setting (0x01, 0x20) – 20 % to 95 % in steps of ~2.42 %